package _5_Create._5_2_Builder._5_2_1_degenBuilder;

/**
 * 既是是客户端也是导演者，负责零件组装
 */
public class MailSender {
    private static MimeMessage message;

    public static void main(String[] args){
        String subject = "hello!";
        message.setSubject(subject);
    }
}
